Display device

Abstract

According to one embodiment, a display device includes a plurality of scanning lines, a plurality of signal lines, a plurality of pixels, a pixel electrode and a common electrode, wherein the pixel electrode includes a first trunk portion and a plurality of first branch portions extending from the first trunk portion, the common electrode includes a second trunk portion and a plurality of second branch portions extending from the second trunk portion, the plurality of first branch portions and the plurality of second branch portions are arranged alternately, and the signal lines and the pixel electrodes are formed of a same material and by a same process.

What is claimed is: 
     
       1. A display device comprising:
 a plurality of scanning lines extending along a first direction; 
 a plurality of signal lines extending along a second direction intersecting the first direction; 
 a plurality of pixels provided at respective intersections of the plurality of scanning lines and the plurality of signal lines; 
 a pixel electrode provided in each of the plurality of pixels and formed in a same layer as that of the signal lines; and 
 a common electrode provided over the plurality of pixels, wherein 
 the pixel electrode includes a first trunk portion and a plurality of first branch portions extending from the first trunk portion, 
 the common electrode includes a second trunk portion and a plurality of second branch portions extending from the second trunk portion, 
 the plurality of first branch portions and the plurality of second branch portions are arranged alternately in line with each other, 
 the signal lines and the pixel electrodes are formed of a same material and by a same process, 
 when a boundary between the first branch portion and the first trunk portion is a first base portion, and a boundary between the second branch portion and the first trunk portion is a second base portion, 
 a first distal end of each of the first branch portion and the first trunk portion, and a second distal end of each of the second branch portion and the second base portion are covered by a light-shielding layer, 
 a part of the pixel electrode and a part of the common electrode overlap each other to form a storage capacitance, 
 the pixel electrode comprises a connection wiring line that connects two of the first branch portions, 
 the common electrode comprises a common wiring line, the second trunk portion, the second branch portion and a protrusion protruding from the common wiring line, 
 the first trunk portion and the protruding portion of the pixel electrode, and the connection wiring line and the common wiring line overlap each other to form the storage capacitance, and 
 the light shielding layer overlaps the first trunk portion and the protruding portion of the common electrode, and the connection wiring line and the common wiring line to form the storage capacitance. 
 
     
     
       2. The display device according to  claim 1 , wherein
 the first trunk portion and the second trunk portion extend along the second direction, and 
 the plurality of first branch portions and the plurality of second branch portions extend along the first direction. 
 
     
     
       3. The display device according to  claim 1 , wherein
 the first trunk portion and the second trunk portion extend along the first direction, and 
 the plurality of first branch portions and the plurality of second branch portions extend along the second direction. 
 
     
     
       4. The display device according to  claim 1 , wherein
 each of the plurality of first branch portions and each of the plurality of second branch portions have a tapered shape narrowing towards its distal end. 
 
     
     
       5. The display device according to  claim 1 , wherein
 one of each of the plurality of first branch portions and each of the plurality of second branch portions has a tapered shape and the other has a reverse-tapered shape. 
 
     
     
       6. The display device according to  claim 1 , wherein
 each of the plurality of first branch portions and each of the plurality of second branch portions have a rectangular shape.